diff --git a/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java b/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
index 11e162f..a54fe0f 100644
--- a/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
+++ b/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
@@ -61,7 +61,7 @@ public class PaymentGatewayMediaPayments implements PaymentGateway {
         int timeout = 180;
 
         double roundedValue = RoundUtils.round(payinfo.getTotal());
-        new Application().mediaPaymentsTransaction(roundedValue, getPaymentWindow(roundedValue), payinfo.getTransactionID());
+        new Application().mediaPaymentsTransaction(roundedValue, getPaymentWindow(roundedValue), roundedValue > 0 ? payinfo.getTransactionID() : null);
 
         while (AppContext.getIsProcessing() == null || AppContext.getIsProcessing()) {
             try {